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powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation

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[ Upstream commit 053c5a753e ]

Local radix TLB flush operations that operate on congruence classes
have explicit ERAT flushes for POWER9. The process scoped LPID flush
did not have a flush, so add it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nicholas Piggin
2018-08-27 13:03:02 +10:00
committed by Greg Kroah-Hartman
parent 9e4649e443
commit 6a70c66a84
1 changed files with 1 additions and 0 deletions
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arch/powerpc/mm/tlb-radix.c
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@@ -429,6 +429,7 @@ static inline void _tlbiel_lpid_guest(unsigned long lpid, unsigned long ric)
__tlbiel_lpid_guest(lpid, set, RIC_FLUSH_TLB);
asm volatile("ptesync": : :"memory");
asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
}